Clinton Christian Academy
Session 2019-026

Application

School

Class

Project

Miscellaneous

Transcript

Connected on 2019-09-20 10:00:00 from Clinton, Missouri, United States

• 9:21 am
• Bugscope TeamScott and I are making presets.

• Bugscope TeamWelcome, Dave & Tristen!

• Bugscope TeamEnough bee details for now; on to the mosquito.
• 9:27 am

• Bugscope TeamOnboard from my office!

• 9:32 am

• 9:38 am

• 9:44 am

• 9:51 am

• 9:58 am

• Bugscope TeamReady to go!

• 10:03 am

• Bugscope Teamplease call if you need help: 217 265 8164

• Bugscope TeamHi Ryan!

• Bugscope TeamWelcome to Bugscope!
• Bugscope TeamFlea! You can see the eyespot and the mouthparts
• Bugscope TeamIt's lying on doublestick carbon tape
• Bugscope TeamPlease let us know when you have questions.

• Bugscope TeamWe can of course drive and provide a running commentary, but we would like this to be interactive.
• 10:09 am

• TeacherNot having any luck in changing the screen to different presets
  Bugscope TeamTry one more, and tell me which one it was.

• Bugscope TeamPedicel, right?
• Bugscope Teamthis is a closeup of the male mosquito's head
• Bugscope TeamRyan, that looks like the preset worked.

• Bugscope Teamwe can see some of the eye facets to the left -- the round things. they're called ommatidia

• Bugscope Teamnow we can see the antennae

• Bugscope Teamthey're very orderly; that shows us that it's a male
• Bugscope Teamthe pedicel is the softlooking donut like part
• 10:14 am

• Bugscope Teamso this is an out of focus butterfly wing scale
• Bugscope TeamRyan, you moved to the butterfly wing, correct?

• Bugscope Teamwe're looking at wing scales, very small
• Bugscope Teamthe spacing between the long lines interferes with the wavelengths of visible as well as UV light and produces 'structural' colors
• Bugscope Teambeautiful
• Bugscope Teamin the foreground, out of focus, is the tip of another scaled
• Bugscope Teamoops 'scale'
• Bugscope TeamRyan, do your students have any questions about what they're seeing?
• Bugscope Teamsometimes we see pigment granules in the lattice between the vertical members of the scale
• 10:20 am
• Bugscope Teamthe scales function much like feathers do, for birds, but they have another very useful function

• Bugscope Teamif you notice, when you rub a butterfly's wings, the 'powder' that comes off of them, those are the scales
• Bugscope Teamwhen a butterfly or moth or mosquito or even a silverfish (which also has scales) runs or flies into a spider's web, the scales stick to the web but the insect can leave them there and get away

• Bugscope TeamRyan I am finding that I need to refresh the screen fairly often. It's something we have to improve.
• Bugscope TeamBee head, with mandibles crossed in front like folded arms.
• Bugscope Teambelow the crossed mandibles is the labrum, which covers the tongue
• Bugscope Teamlet us know if you have any questions. We are here to help
• 10:25 am
• Bugscope Teamthe compound eyes have little hairs sticking out of them called 'setae'

• Bugscope Teamthe setae are sensory
• Bugscope TeamBranched setae on the bee's eye.
• Bugscope Teamin this view we are looking at branched seta that are extended over the compound eye, which has its own straight, nonbranched setae
• Bugscope TeamRefocused on the eye itself, now the hairs are blurrier.
• Bugscope Teamsetae can be thermosensory, mechanosensory, and/or chemosensory
• Bugscope TeamThe microscope has limited depth of field, just like an optical camera's telephoto lens.
• Bugscope Teamsetae are an important means of gathering data about what is around an insect or similar arthropod
• Bugscope TeamSee those pollen grains at right on the eye? I'll zoom in on them now.
• Bugscope Teamthese straight setae can help the bee sense wind speed and direction

• Bugscope Teamthe pentagons and hexagons are the individual ommatidia -- the eye facets
• Bugscope Teamthis is a small pollen grain, caught on one of the eye setae
• Bugscope TeamFunny how the bee's *legs* are where pollen usually collects, but the eyes are also fuzzy enough to collect some.
• 10:30 am
• Bugscope Teamnice

• Bugscope TeamBees and wasps have four wings, whereas flies have only two
• Bugscope Teamboth bees and wasps can fold their wings up so they can fit more easily into their hives
• Bugscope TeamThe bee's front and back wings connect with this zipper-like structure.
• Bugscope Teambut when they fly, it is more efficient to have two, rather than four wings, so they clip each set of wings together
• Bugscope Teamthe things we see now that look like hooks, or shower curtain rings, are called hamuli
• Bugscope Teamthe hamuli are the clips that hook the two wings together on each side
• Bugscope TeamClose-up of the zipper, the hamuli.
• Bugscope Teammore pollen!
• Bugscope Teamflying with four wings is not a problem for all insects: dragonflies have four wings and don't clip them together; they do a great job maneuvering through the air

• 10:36 am
• Bugscope Teamthis is the tip of the bee's abdomen, where we can see its stinger
• Bugscope TeamBee's stinger, poking out from its fuzzy behind.
• Bugscope Teamthe stinger has something on it -- perhaps a dried fluid -- that is likely leftover from whatever it had stung recently
• Bugscope Teamwe see lots of branched setae on the abdomen, here. Bees have branched setae; I believe no other flying insect does.
• Bugscope TeamTip of stinger.
• Bugscope Teamyou can see that the stinger is serrated, beneath the dried fluid. it's like a steak knife, cutting into your skin

• Bugscope TeamMosquito head!
• Bugscope Teamsome stingers are actually double bladed and slide side by side as they work, so they cut better
  Bugscope TeamLike a hedge trimmer.
• Bugscope TeamBees can sting other insects and survive, but when they sting mammalian skin the stinger gets stuck in the skin and cannot easily pull out
• 10:41 am
• Bugscope TeamThe whole stinger and the little venom pump that is attached to it can be pulled out of the bee's body and left in the mammal's (like a human) skin

• Bugscope Teamfemale mosquito antennae do not look as cool and orderly as those of the male

• Bugscope TeamFacets on the eye of the skeeter.
• Bugscope Teamthe male mosquito uses its antennae to help search for females; the antennae have a sensory component called a Johnson's Organ that helps the mosquito pick up the vibrations of a female's wing beats so it can find here
• Bugscope TeamOooh sorry it is called a "Johnston's" organ
• 10:46 am
• Bugscope TeamThe Johnston's organ is said, in some references, to be located in the pedicel which we can see now -- the furry donut-like base of the antenna

• Bugscope TeamIn the past we have spoken with entomologists who locate the Johnston's Organ in the antennae themselves.
• Bugscope TeamBaby ticks - only 6 legs, not 8.
• Bugscope Teamjuvenile ticks, very small

• Bugscope Teamthey need to have a few blood meals, after which they moult, and when they're done they have eight legs and are larger -- adults
• Bugscope TeamWe can see, in both forelegs, the Haller's Organ, which helps them sense their prey
• 10:53 am
• Bugscope TeamBetween the legs there it looks like a clump of pollen!
• GuestThanks, DaddyO

• GuestCamille can you go to the anthead?
  Bugscope TeamTrapjaw ant head, as requested.
• Bugscope TeamThis is cool
• 10:58 am
• Bugscope TeamThere are many different species of trapjaw ants
• Bugscope Teamsome of them have much longer jaws, and they pull them back, open, so they look kind of like oxen, with big horns
• Bugscope Teambetween the jaws (mandibles) are trigger hairs; when something touches the trigger hairs the mandibles snap shut
• Bugscope TeamThe whole head, now.
• Bugscope Teamit's how the ants can catch their prey, which might be springtails
• Bugscope TeamSpringtails are little insect-like arthropods (Collembola) that you find in the leaf litter
• Bugscope TeamIts mandibles' tips.
• Bugscope Teamthey're called hexapods because they have six legs, but they're technically not insects
  Bugscope TeamReally? I didn't know that.
• 11:03 am

• Bugscope TeamRyan we are going to run a bit long so some visitors to the Vis Lab Studio, within our facility, can take a look at Bugscope

• Bugscope Teamfruit fly!
• Bugscope Teamyou can see its antennae, both components, on the top of the head, to the right
• Bugscope Teamwe should if we are lucky also be able to see one of the halteres
• Bugscope Teamit would be below where we are now

• Bugscope Teamlittle scales at the edge of one of the compound eyes
• Bugscope TeamHi Travis!
• Bugscope Teamthis is a fruit fly head, up close
• Bugscope Teamcompound eye to the right -- the ommatidia
• Guesthi travis here
• Bugscope TeamCruising around the fruitfly - Scott wants to show the haltere.
• 11:08 am
• Bugscope TeamThere we go, right in the middle, the haltere.
• Bugscope TeamIt's the spoon pointing right at you. But it's deflated because it's dead.
• Bugscope TeamOne on each side of the fruitfly beats opposite to the wings, to stabilize flight.
• Bugscope TeamOK, on to the ant head now.

• Bugscope Teamtotally cool
• Bugscope Teamtrapjaw ant's head, mandibles at top.
• Bugscope Teamsweet
• Bugscope Teamthe one on the right looks good, though
• Bugscope Teamone of the antennae is busted off
• Bugscope Teamthe big bumps on the back of the head, like in Mars Attacks, are not full of brains; they're full of muscles
• 11:14 am
• Bugscope Teamthe antennae join the head in a ball and socket arrangement
• Bugscope Teamhard to see here...
• Bugscope TeamMandibles' tips.

• 11:19 am

• Bugscope TeamTicks too young to have all 8 legs yet.